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A Morphological Study on the Stomach in Sulfur-fed Ducks

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동물자원연구 (Annals of Animal Resources Sciences)
강원대학교 동물자원공동연구소 (Institute of Animal Resources Kangwon National University)
초록

This morphological study was performed on the stomach of ducks at 6, 12, 18 months after feeding the 6% of sulfur in diet and control fed the same diet without sulfur. After weighting of body of 36 ducks, we sacrificed the ducks and harvested stomach. Then we check the fed materials and the lumen of stomach. H-E, alcian blue - PAS (pH 1.0), and alcian blue - PAS (pH2.5) stains were used to histological and histochemical observation for the mucus The body weights decreased dependent upon the duration of feeding sulfur statistically, however, the stomachs kept their weight except the 18 month fed group. Ulcerative papillae containing caseous necrotic region were conspicuous on the lumen of proventriculus of sulfur-fed ducks. In addition, some lobules of proventricular glands adjacent to the papillae were observed with severe atrophy. mucus secreted from mucous epithelium showed same pattern between control and sulfur-fed ducks, but the ducts of proventricular glands in 12, 18 months groups had nonsulfated mucopolysaccharides. Gizzard had no pathological changes, however, ingested feed were mixed with re-fluxed bile juice from duodenum. Gastric glands in the gizzards of sulfur-fed ducks had increased the number of acidic mucin positive cells as well as surface cells containing PAS positive materials, which were thought to bring the change of matrix that observed with strong purple color. These data suggest that sulfur feeding for long term causes the damage on the proventriculus mucosa and its glands and also the change on the cuticle secreted from giazzard glands. These changes may be related to decrease of body weight.

목차
ABSTRACT   Ⅰ. 서론   Ⅱ. 재료와 방법   Ⅲ. 결과   Ⅳ. 고찰   Ⅴ. 요약   Ⅵ. 참고문헌
저자
  • 안동춘(강원대학교 동물자원과학대학 수의학과) | Dong-Choon Ahn Corresponding Author
  • 김현철(강원대학교 동물자원과학대학 수의학과) | Hyeon-Cheol Kim